Sam Bush There was only one prize-winning teenager carrying stones big enough to say thanks, but no thanks to Roy Acuff. Only one son of Kentucky finding a light of inspiration from Bill Monroe and his Blue Grass Boys and catching a fire from Bob Marley and The Wailers. Only one progressive hippie allying with like-minded conspirators, rolling out the New Grass revolution, and then leaving the genre’s torch-bearing band behind as it reached its commercial peak.